Baling press



Dec. 9, 1924. 1,513,362

. W. H. SALLWASSER BALING PRESS ATTORNEY Deg, 9, 1924. 1,518,362

w. H. sALLwAYssER BALING' PRESS Filed March 27, 1924 *s sheets-sheet 2INVEN TOR.

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Dec.y 99 192,4; 1,518,362 W. H. SALLWASSER BALING PRESS Filed March 27,1924 3 Sheets-Sheet 5 /35 v 35 INV-'EN TOR. umg :www

fm ww A TTORNEY UNITED STATES PATENT- QFFICE.

WILLIAM H. SALLWASSER, OF GHICAGO, ILLINOIS.

BALING PRESS.

Application filed March 27, 1924. Serial No. 702,265.

To all whom it may oon-cern.'

Be it lrnown that I, Timm-nr Il. SALL- wnssnn, a` citizen of the UnitedStates of America, and resident of Chicago, in the county of Cool; andState of Illinois, have invented new and useful Improve-ments in DalingPresses, of which the following is a description, reference being had tothe accompanying` drawings, which are a Vpart of this specification.

The invention relates to baling presses.

The object of the invention is to provide a hailing press of thedoorless type and which permits of a ready and eliicientforming of thebale by the use of two platens with a stationary open-ended press box.

In carrying out my invention, I malle use of a stationary box,preferably vertically disposed and open at the top and bottom andmounted so that the top, through which it is filled, is located at thelevel of one. of the floors of the building in which the press is used.

Not only is the box stationary but it has no movable doors or otherparts requiring hinges, locks and operating devices; the `only movableparts being in the preferred embodiment herein shown, a platen withinthe box forming vertically movable bottoni which acts both as a pressingelement and as an ejector, and a vertically movable platen above thc.box; material to beba'led being compressed within the box between thesetwo platens and bei ng thereafter moved out of the box while held by theplatens so that the bale may be bound.

In one form of the invention herein hmm, the material is. placed in thebox from the floor in which the top of theI box is located, and the workof filling the press is' thereby lightened and capable of rapidperformance; and in another form herein shown the closure platen isvadapted to be moved from its carrying frame so that the prcss may bcfilled from the upper floors by chuting directly to the press box.

Fur-

thermore, because the finished bale is raised directly out of the top ofthe boi( and need only be tipped laterally off the lower platen, nodoors being required to be opened, the worl of removing the finishedbale is also light and quickly performed.

The p-latensv are moved or held by suitable power devices, preferablyhydraulic in their nature, and so controlled that the operation of the,press is simple, rapid, and with the expenditure of minimum power.

Furthen more, the various steps in the operation of the press are socarried out thatl while a high pressure fluid is required to compact themateria-l to form bale, this high pressure need not be continued forejecting the bale, but the bale may be ejected when formed at a lowpressure.

This application is a continuation in part of my co-pending applicationSerial No. 586,562, filed September 7, 1922.

The various features of novelty whereby my invent-ion is characterizedwill herein-- after be pointed out with particularity in the claims, butfor a full understanding of my invention and of its objects andadvantages, reference may be had to the following detailed descriptiontaken in connection with the accompanying drawings wherein:

Fig. l is a front elevation of a press embodying the invention, shownopen, the hydraulic controlling, actuating mechanism being illustrateddiagrammatically;

F ig. 2 is a. vertical section on a plane parallel with the side shownin Fig. l, the piping being omitted;

Fig. 3 is a view similar to Fig. 2 showing the contents of the presscompacted into a Fig. 4 is a view similar to 2 and 3. showing thecompleted bale in' its ejected position;

Fig. 5 is a section through the controlling valve, being takenapproximately on line 5'-5 of Fig. l, on a larger scale;

Fig. 6 is a front view of the control valve;

Fig. 7 is an end view of the control valve;

Fig. 8 is a viewsimilar.' toA Fig. l, with. the piping omitted andshowing a removable upper platen; i

Fig. 9V is an end view of the press shown in Fig. 8;

Fig. l0 is a detail of the lock for the movable upper platen.

Referring to the drawings, l represents a box, conveniently rectangularin cross-seow tion and open at the top and at the bottom. In thisarrangement, the bo);v is provided with corner posts 2 extendingdownwardly to form supporting legs and extending upward-ly to formguides. The box is supported conveniently by permitting the legs to restupon a suitable base or fioor so that the upper end is flush or levelwith the floor 3 of the room or compartment containing the materialwhich is to be baled. In Figs. 8 and 9 the press box l' is' suitablysupported from uprights 2 which connect with a top l'rarne and guide 2"adjacent the Hoor 3.

In each instance a pressing platen 4c is mounted in the box to movelengthwise of the same and forms an eliective closure for one end of thebox, which in the case of a vertical press is its bottom. A secondplaten 5 or 5 forms a closure for the other end of the box and in thecase of a vertical press is mounted above the top of the box. In Figs. 1to t, inclusive, this upper platen 5 is guided in its movements by theupwardlyprojecting corner posts 2 of the boX, while in Figs. 7 and 8 theplaten 5 is separate from its supporting frame, which includes an opentop frame 30, side members 3l, one at each corner of the frame 30 andmounted to slide in suitable openings in frame 2l and tracks 32 carriedby said side members upon which the rollers 33 on the platen 5 run, saidplaten 5 being movable from its supporting frame onto stationary tracks34 alined with the tracks 32 when the press is ready for filling so thatmaterial from the floor 35 above the press may be fed therefrom througha chute 36 directly to the press box through the opening in the frame30. lVhere such movable platen 5 is used locking means are provided tohold it against movement relative to its frame during the operations ofthe press and as here shown in Figs. 9 and l0,

this locking means consists of a latch 37 pivotally mounted intermediateits ends on one of the members 3l and provided with a forked end 38engageable with a part of the platen which, in this instance, is theextended end 39 of one of the roller supporting shafts. i i

I have illustrated my invention as operated by hydraulic pressure and,for thesake of brevity, I shall confine the detailed description to thistype, which is the'preferred one; although it may be understood that insome aspects of my invention other power mechanism may be used.

The lower platen l is in each instance carriedl on the upper end of along plunger G forming part of a hydraulic ram 7. The upper platen 5 issupported on the upper ends of piston rods 8 while the upper platen 5has its side members 3l connected in pairs to cross-heads 4 0 supportedon the upper end of piston rods 8. As shown more particularly" in Figs,2 to 4, inclusive, each piston rod 8 has a piston 9 on its lower endworking in a hydraulic cylinder 10 suitably supported on or adjacent tothe press box.

'When the press is ready for filling, the lower platen will be at thelower end of the box and the upper platen or its supporting frame shouldbe at the upper limit of its movement, as shown in Figs. l, 2, 7 and 8.The material to be baled is then shoveled, chuted or drawn into theupper end of the press box until the same is filled, as indicated inFie', 2D the baling iruiterial being indicated at Il, and in the case ofthe removable platen 5 the same is preferably moved on the track 34C topermit direct chuting ot the material from the floor above into thepress box and is then returned to its operative position and locked toits supporting frame. Then, in each instance, the closure platen 5 or 5is moved to form a closure for the top of the box, as shown more particularly in connection with the platen 5 in Fig. 3. lhile the upper platen5 or 5 is held in its lowered position the platen fl; is moved up untilthe material has been conipressed to the desired extent to form a balebetween the platens, as shown more particularly in Fig. 3. After thebale has been formed both platens, in each instance, are moved up inunison, as shown in Figs. t and 9, the upper surface of the lower platenbeing now a short distance above the floor level. The bale-engagingportions of the platens are provided with the usuul grooves 1 1 forreceiving the tie wires 12 which may be fastened. around the bale, asshown in Figs. l to 9, while the bale is still being gripped between theplatens. ThereH after the lower platen 4 is lowered slightly while theupper platen is held raised, thus releasing the bale. and permitting itto be pushed laterally off the lower supporting platen.

After the bale has been removed the lower platenis dropped to the bottomof the box and in the case of the removable platen 5 the platen is movedonto its track at one side of the press so as to place the press incondition to receive a new charge.

Power is supplied by a suitable pump 13 preferably of the compound typeso that a high pressure may be attained when needed while at other timesthe motive fluid will be at low pressure. rlhe suction side of the pumpis connected to a suitable tank lll by means of a pipe l5. The dischargeside of the pump is also connected to the tank through a suitable valvedevice '16. pipe 1'? leads from the valve devire to the lower ends ofthe cylinders 10. The upper ends of these cylinders are connecte-idtogether and to the lower end of the rain h v means of a conduit 1,3between which and the valve device is arranged a pipe lf). '.lhe valvemechanism may he ot an)v usual or suitable construction. ln the drawingsl have illustrated comf'entionally au ordinary three-spindle valveconnected in a typical way with the pump and tank. In this valvemechanism are three independent valves, 20. 2l and 22, slidably mountedin cylindrical passages 23, 24- and 25 in the body member 26 of thevalve. The three passages are connected by a transverse passage 2". Thepipe 17 is connected to the passage 23 at the intersection of the latterwith the ldd llfi

1,5 ls-,see 3 transverse passage. The pipe 19 is connected to thepassage at the intersection ot' the latter with the transverse passage-The discharge pipe 28 ot' the pump is connected to t-he passa-ge 24 atthe intersection ot' the latter with the transverse passage. The passage24 is connected tothe tank la by means oi a pipe 29 ope'iiing into thepassage 2l at 'sonre distance tron-1 'the point et conn'ection with thepipe 28. The va es 2() and 22 are so constructed that each i ill in oneposition connect the corresponding pipe with the transverse passage 2Twhileits. other position it will shut oli comnninication between itscorresponding pipe and the transverse passage. The valve 21 is soconstructed. that in one position it will close the waste pipe 29 whilein another position it will open communication between the waste pipeand the transverse passage.

ln Fig. 5 'the valves are shown in the position which they occupy whenthe press is in the condition shown in Figs. 1 and 2, at which time thevalve 22, being closed, prevents fluid from passing from Vthe pump intothe pipe 19, that is, into the ram 'and the ripper ends of thecylinders. Assuming the pump to be working, it will be 'seen that fluidwill How through the disch-arge pipe of the same into the passage 24 andthus through the transverse passage to the pipe 17 so that pressure ismaintained underneath the pistons 9 and the upper platen is caused to beheld raised. Alter theV box has been filled, the valve 2l is shifted inthe downward direction, as viewed in Fig. 5, placing the transversepassage in communication with the waste pipe. The water will now flowout of the lower ends oi the cylinders 1() into the tank and the upperplaten will drop by gravity into the position shown in Fig. 3; the lowerplaten still being in the position shown in Fig. 2. The valve 20 is thenshifted so as to close the pipe 17 and the valve 22 is moved intoposition to connect the pipe 19 with the transverse passage. Then, assoon as the valve 21 is returned to the position shown in Fig. 5, thewater will tlow trom the pump through the valve device to the pipe 19and from there tothe conduit 18, the upper ends oi" the cylinders, andthe lower end ot' the rain. The parts are so proportioned that thecombined elifectiv'e areas on the upper sides of the pistons equals thecross-sectional area of the plunger of the ram. Consequently, the sameamount of pressure will be exerted by the hydraulic devices, tending topush the lower platen up and torce the. upper platen down to closedposition. As the upper platens movement is limited, as by engagementwith the press box, as soon as the fluid pressure Vbecomes great enoughthe lower platen Will rise, pressing the contents of the box between thesame and the upper platen which remains statiol'ilary. This movement ofthe lower platen is allowed to continue until the Acontents `oftI thebox have been sufficiently compacted, the condition represented by Fie'.3. The valves `are then returned into vthe position illustrated in llig.5; the pipe being `closed so that none of the fluid in the upper ends ofthe cylinders or in the 'ra-m can escape to the tank; and the valve 20being in its open positron `so that water will flow from the pump intothe pipe 17 fand troni there into the lower ends of the cylinders. Itwill be seen that the upper ends ot' the cylinders and the ram `are newconnected in 'what may be termed a closed system. Consequently, whenpressure is exerted on the under sides et the pistons the istons beginto travel upwardly, forcing tie motive tluid out of the upper ends ofthe cylinders. This motive fluid, 'escaping trom the upper ends ot thecylinders, consequently t'ran-sterred to the ram, the plung- 'er of theram being forced to 'rise at a rate sutlicientrto provide space for theincoming water. On account of the tact that the cross-sectional area ofthe ram equals the combined effective areas of 'the upper sides of thepistons, just enough water will be displaced by the pistons to cause theram to rise at exactly the same rate as the pistons. ln other words, theupper platen will be lifted directly by the pressure 'underneath thepistons, while the lower platen will be lifted in unison therewith bythe motive iluid discharged vfrom the upper ends of the c'ylrinders intothe ramt This movement coirt-lnues until the condition illustrated in ilis reached, the upper platen being at the upper limit of its movement,and the lower platen projecting above the floor level. After thebalewhich has thus been ejected tromthe box has been 4wired, the valve22 and the f'alve 21 are opened, while the valve 20' is closed,'permitting the water to drain out of the ran-l and thus causing the ramlo descend by gravity. The upper platen is still held up and the descentot the lower pla-teu is Chee-lied ar't'ter a. suiiicient distance hasybeen traveled to permit the bale to be freely remolf'cd. After the balehas been removed the draining ot the am is continued until the lowerplaten reaches the position shown in Figs. 1 and 2; the box being againlille'dl and the cycle just described repeated.

It will be seen that a high pressure is required only during thecompacting of" the material to form the bale, while the work of liftingthe bale from the position shown in Fig. 3 to that shown in Fig. 4lrequires only sufficient pressure to raise the weight of the movingparts and the bale against the action of gravity and to overcome theslight resistance ofl'ered to the transfer ot the motive fluid from theupper ends of the cylinders to the ram; and consequently this last stepmay be performed b y motive fluid at a low pressure without loss ofspeed in operation. Therefore, if an automatic compound pump be used thepump will automatically adapt itself to changing conditions requiring inthe one case a high pressure and in the other case a low pressure.

I de not desire it to be understood that this invention is not to belimited to the exact structural details illustrated and described, as Iintend to cover all forms and arrangements which come within the termsemployed in the definitions of my invention constituting the appendedclaims.

` That I claim as my invention is 1. In a baling press, the combinationof a box open at the top, a vertically-movable platen arranged in andforming the effective bottom of the box, a vertically-movable platenarranged above and adapted to form a closure for the top of the box,power devices acting on said platens to move the same, and means forcontrolling said power devices to cause them to hold the upper platenraised independently of the lower platen, to cause the Lipper platen tobe held in its lowered position while the lower platen is moved up tocompress the contents of the box between the same and the upper platen,and to cause both platens to rise together to carry the compressedcontents of the box out of the upper end of the box.

2. In a baling press, the combination of a stationary boX havingrelatively immovable side walls and open at the top, avertically-movable platen arranged in and forming the effect-ive bottomof the box, a vertically-movable platen arranged above and adapted toform a closure for the top of the box, power devices acting on saidplatens to move the same, and means for controlling said power devicesto cause them to hold the upper platen raised independently of the lowerplaten, to cause the Lipper platen to be held in its lowered positionwhile the lower platen is moved up to compress the contents of the boxbetween the same and the upper platen, and to cause both platens to risetogether to carry the compressed contents of the box out Vof the upperend of the box.l

3. In abaling press, the combination of [iii form a closure for the topof the box,

hydraulic devices associated with said plats ens to actuate the same,and means for controlling the delivery and discharge of iluid to saiddevices to permit said platens to move up and down independently of eachother or to produce a transfer of iiuid from the devices associated withthe upper platen to the device associated with the lower platen so as tocause both platens to rise when the upper platen is raised.

4i. In a baling press, the combiinition of a box open at one end, apressing platen working in said box, a closure platen adapted to form aclosure for the openv end of the box, power devices acting on saidplatens to move the same, and controlling devices acting on said platensto hold the closure platen in open position, to cause the closure platento be held in its closing position while the pressing platen is movedtoward said closure platen to compress the contents of the box betweensaid platens, and to cause both platens to move together to carry thecompressed contents of the box out of said open end.

5. In a baling press, the combination of a press box open at the top, avertically-movable platen arranged in and forming the effective bottomof the box, a verticallymovable closure platen to form a closure for thetop of the box, a vertically-movable open-ended supporting frame forsaid closure platen from which said platen is removable, means forholding said closure platen in olrierative position on said frame,vpower devices to move said platens, and means for controlling said powerdevices to cause them to hold the upper platen raised independently ofthe lower platen, to cause the upper platen to be held in its loweredposition while the lower platen is moved up to compress the contents ofthe box between the same and the upper platen, and to cause bothpla-tens to rise together to carry the compressed contents of the boxout of the upper end of the bex.

In testimony whereof, I aiix my signature.

WIT/'Lirical' Il. Siti ,l Al. A SH llit.

